All Tracs have 3.933, Gt-Fours (except the RC/CS versions) have 4.2. Most of the information on the spec page covers Gt-Fours (hence the reason all the dimensions and power output figures are in metric units). Most Americans drive more then europeans/japanese and gas milage is a selling point, hence the reason the US cars have the different ratio. If you would like to change your ratio, go here:
http://gtfour.supras.org.nz/428ratio.htm The 14b is a much better turbo in stock form. I don't care about morons who want to run tens with an overworked pea shooter. In stock form the 14b is a better all around turbo then the ct-26. And yes, the DSMs do have a better ecu setup, but I feel as though both of the ignition systems are strong. The DSMs have a more adaptive ecu, while 3sgtes have slow, safe ecus.